Try removing /experimental:module

Author: alexreinking

regression-tests/cmake/CMakeLists.txt.in

@@ -8,11 +8,7 @@ endif ()
 find_package(cppfront REQUIRED)
 
 add_executable(test-case "@ARG_SOURCE@")
-target_compile_options(
-    test-case
-    PRIVATE
-    "$<$<CXX_COMPILER_ID:MSVC>:/experimental:module>"
-)
+
 if (MSVC AND (MSVC_TOOLSET_VERSION LESS 143))
     # need -std:c++latest on VS 2019 and below
     # TODO: consider making this a more precise usage requirement on cppfront_cpp2util